import { getOrderByPaymentId, markOrderPaid } from '../../../lib/store.js';
import { molliePaymentStatus } from '../../../lib/payments.js';
import { sendOrderConfirmation } from '../../../lib/mailer.js';
export const prerender = false;

// Mollie sendet POST mit `id` (Payment-ID). Status via API prüfen → bei paid Order setzen + Mail.
export async function POST({ request }) {
  let paymentId = '';
  try {
    const ct = request.headers.get('content-type') || '';
    if (ct.includes('application/json')) {
      const b = await request.json().catch(() => ({}));
      paymentId = b.id || '';
    } else {
      const form = await request.formData().catch(() => null);
      if (form) paymentId = String(form.get('id') || '');
    }
  } catch {}
  if (!paymentId) return new Response('OK', { status: 200 });

  try {
    const st = await molliePaymentStatus(paymentId);
    if (st.status === 'paid') {
      let order = getOrderByPaymentId(paymentId);
      if (!order && st.metadata && st.metadata.order_id) {
        const { getOrderById } = await import('../../../lib/store.js');
        order = getOrderById(st.metadata.order_id);
      }
      if (order) {
        const res = markOrderPaid(order.id, { payment_id: paymentId, payment_provider: 'mollie' });
        if (res.changed) { try { await sendOrderConfirmation(res.order); } catch {} }
      }
    }
  } catch (e) {
    // Webhook nie mit 500 quittieren (Mollie würde sonst dauerhaft retrien); 200 mit Log.
    console.error('[payments:webhook]', e && e.message || e);
  }
  return new Response('OK', { status: 200 });
}

// GET zur einfachen Erreichbarkeitsprüfung.
export async function GET() { return new Response('payments webhook ready', { status: 200 }); }